Rant: Preview.app on OSX doesn't support PDF signature?

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Just a little rant here:

Increasingly, many schools are asking for letters of recommendation to be sent via PDF.

I sign my PDF letters using the PDF secure signature feature in Adobe Acrobat Pro.  This embeds a digitally verifiable image and hash that links back through a public key system to me. It also locks and signs the PDF file so that it cannot be tampered with.

Adobe Acrobat Reader will automatically verify any embedded signatures that it finds in documents it opens, and let the reader know that the signature is bona fide.

I just found out that Preview.app in Snow Leopard (Mac OSX 10.6) doesn't either:  1) display, or 2) verify signatures. It just leaves a big blank where the sig should be.



Stupid, just plain stupid.


This follows on my previous rant about not being able to do some glyphs properly in OSX: http://www.photoethnography.com/blog/2010/04/mean-mac.html

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About this Entry

This page contains a single entry by Karen Nakamura published on December 1, 2010 12:37 PM.

UBC Ethnographic Film Festival - Call for Films was the previous entry in this blog.

Video: Solid-state high-def camcorders is the next entry in this blog.

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